Water-meter.



No. 644,487. Patented Feb. 27, |900. E. ZUMKELLER.

WATER METER.

(Application led May 28` 1898.)

(No Model.)

STATES l PATENT i Fries.

EMIL ZUMKELLER, OF LUDWIGSIIAFEN, GERMANY, ASSIGNOR TO FRIEDRICH LUX, OFSAME PLACE;

autres-iviETER.'`

SPECIFICATION forming part of Letters Patient' No. 644,487, datedFebruary 2r, Ieo. Application filed May 28, 1898. Serial No. 682,059.(No model.)

To all whom it may concern.-

Be it known that I, EMIL ZUMKELLER, residing atLudwigshafen-on-the-Rhine, in the Kingdom of Bavaria and German Empire,have invented a certain new and useful Improvement in Water-Meters, (forwhich I have filed applications for Letters Patent as follows: inGermany on November 13, 1897, No. Z. 2,469 11/42; in Great Britain onMay 2, 1898, No. 10,043; in Denmark on May 3, 1898, No. 487; in Swedenon May 4, 1898, No. 762; in Norway on May 5, 1898, No.9,772; in Franceon May 5, 1898, No. 265,438; in Austria on May 7, 1898; in Hungary onMay 10, 1898, No. 6,701, and in Belgium on May 10, 1898, No. 105,7 90,)of which the following is a speciiication, reference being had to theaccompanying drawings.

This invention consists in the vane-wheel water meter hereinafterdescribed and claimed, which is capable of measuring water flowingthrough it in the direction opposed to that of the usual flow, theconstruction and arrangement of parts being such that the passagesprovided in the walls of the measuringcylinder are arranged horizontallyone above the other and are of the same size, but run in oppositedirections, while upon both the bottom and top cover-plates of thecylindrical measuring vessel are provided stemming or damming ribs oftriangular cross-section so arranged that water iowing in from belowstrikes against their vertical faces, While water ilowing in from abovestrikes against their inclined faces, in consequence of which thevane-Wheel in spite of being more heavily loaded with the water iiowingin the backward direction yet makes exactly the same number ofrevolutions, only in the reverse direction, for each unit of measurementof water iiowing backward as for each unit flowing in the forwarddirection.

In the accompanying drayings, Figure 1 is a vertical section through awater-meter constructed in accordance with my invention. Fig. 2 is ahorizontal section upon the line a b of Fig. 1 through the cylinder andthe vanewheel, as seen from above. Fig. 3 is a horizontal section on theline c d of Fig. 1 through the cylinder and the vane-wheel. Fig. 4 is aplan view of the bottom plate closing the lower end of t-he cylindricalmeasuring vess'el. Fig. 5 is a plan view showing the top plate of thecylindrical measuring vessel. Fig. 6 is a detail sectional view on theline g h, Fig. 5; and Fig. 7 is a similar View on the line ef, Fig. 4.

In order to enable those skilled in the art to make and use myinvention, I will now describe the same in deta'il, reference being madeto the accompanying drawings, iu which-- The letter A indicates theouter metal meter-casing, having at one side the water-inlet A and atthe opposite side the water-'outlet A2. In' the top part of the casingis arranged a frame or inner case B, designed to contain any suitablecounting or registering mechanism adapted to be operated in anywell-known manner by the central vertical shaft B of the vane or waterwheel hereinafter described. Inasmuch as the counting or registeringmechanism may be of any known type operated as usual, I do not deem itnecessary to describe or illustrate the same in detail. In the lowerpart of the outer casing is arranged the cylinder B2 of the measuringvessel, having in its sides two sets of lateral water-passages C and D,arranged in opposite directions, as seen in Figs. 2 and 3, and one setbeing above the other, as seen in Fig. 1. The arrangement of thewater-passages O and D should be such that, assuming the vane or waterwheel, hereinafter described, to be absent, the water entering the lowerpassages, for example, will issue through the upper passages withoutdiverging from its tangential direction, and conversely.

The vane or water wheel rotating in the cylindrical measuring vesselconsists of an annular disk E, provided both above and below with curvedvanes or scoops F and G, the hollow and concave side of which isdirected toward the water -inlet in each case. The vanes or scoops F onthe lower side of the disk E curve and extend in a direction the reverseof the upper vanes or scoops G, as will be clear by reference to Figs. 2and 3.

In the walls of the cylinder are formed two or more passages H, whichmay be closed to a greater or less extent by means of screws I.

The cylinder, B is closed at its lower end by a bottom plate K',preferably screwed into IOO place, and at its upper end bya top plateK2, preferably integral with the cylinder. These bottom-and top platesare formed or provided, respectively, with radial stemming or dammingribs K and K3. (Best seen in Figs. Ito '7, inclusive.) The ribs are eachsubstantially triangular in cross-section, and one face of each rib isvertical and at right angles to the plate, while the opposing face isinclined thereto. I have represented three radial ribs on each plate,but do not confine myself to this particular number. The ribs are soarranged that the stream of water entering below and iiowing upwardstrikes against the vertical faces of the same both at the base and atthe cover of the cylinder, while water iiowing in the oppositedirectionthat is to say, from above downward-passes readily over theinclined surfaces. The water passing through the meter in the directionof the arrows upon thc drawing off of such water enters by the lowerpassages, causes the vanewheel to rotate by striking upon the lower setof scoops, flows through the middle portion upward, thereby loading thevane-wheel heavily, and passes out by way of the upper passages. Wateriiowing through in the opposite direction enters by the upper passages,strikes upon the upper set of scoops, and thus causes the vane-wheel torotate backward, leaving the measuring vessel through the lowerpassages. As the water 1iowing back loads the vane-wheel, while thewater iiowin g forward lightens it, if the indications exactlycorrespond with the amount of water fiowing through in the forwarddirection they would be slow with respect to the quantity of water owingback; but owing to the stemming-ribs having differently-inclined facesthis difference is compensated for. During both a forward and a backwardiiow of water a portion of the same passes through the pasv sages formedin the cylindrical walls of the measuring vessel,which passages form akind of circularconduit, whereby a ready and eX- act means of gaging themeter independently of the various loads is afforded.

Having thus fully described myinvention, what I desire to claim andsecure by Letters Patent is- 1. The combination, in a Water-meter of theinner, cylindrical measuring vessel having water-passages and top andbottom plates closing its ends and provided with radial stem ming-ribsapproximately triangular in crosssection, one face of each rib beingvertical and the other inclined, and a rotary vanewheel within thecylinder, substantially as and for the purpose described.

2. In a water-meter, the combination with the outer casing having aninlet and an outlet, and a frame or inner case in the upper part of saidcasing for containing a suitable register, of the cylindrical measuringvessel having upper and lower sets of lateral Waterpassages and top andbottom cover-plates provided with radial stemming-ribs triangular incross-section, each rib having one face inclined and the opposing faceat right angles to the plate, and a water-wheel composed of a diskhaving curved vanes on its upper and lower sides, substantially las andfor the purposes described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EMIL ZUMKELLER.

Witnesses:

MATTHIAS SCHRENMETZEP., JACOB ADRIAN.

